Transverse Waves

Q.

Why can light travel in vacuum ?

Q.

What is one cycle of a wave?

Q.

Mechanical transverse waves cannot propagate inside liquids and gases.

1. False

2. True

Q. Which of these is not an example of mechanical wave?

1. Sound waves
2. Water waves
3. Seismic waves
4. Light waves

Q.

Can transverse waves travel through vacuum?

Q.

What is a transverse wave ? In which medium : solid, liquid or gas, can it be produced ?

Q.

Sound travels in air if

1. Particles of medium travel from one place to another

2. There is no moisture in the atmosphere

3. Disturbance moves

4. Both particles as well as disturbance travel from one place to another

Q.

Can transverse waves be produced in liquids?

Q.

Can water waves be Polarised?

Q.

If a cork is made to move up and down on the surface of water then longitudinal waves are produced on the surface of water.

1. True

2. False

Q. Mechanical waves require medium to travel.

1. False
2. True

Q. Question 18
Represent graphically by two separate diagrams in each case

(i) Two sound waves having the same amplitude but different frequencies.

(ii) Two sound waves having the same frequency but different amplitudes.

(iii) Two sound waves having different amplitudes and also different wavelengths.

Q. The particles of a transverse wave moving in West-East direction, will move in:

1. East-West
2. West-South
3. South-North
4. North-East

Q. Represent the following on two different graphs in each case:
Case(i): Two sound waves having the same amplitude but different frequences.
Case(ii): Two sound waves having the same frequency but different amplitudes.
Case(iii): Two sound waves having different amplitudes and also different wavelengths.

Q.

Choose the correct statement about seismic waves:

1. These are mechanical wave

2. These can be either longitudinal or transverse.

3. These are electromagnetic wave

4. These waves are a result of big explosion, earthquakes, and volcanic explosion.

Q.

Statement 1: In air, the particles vibrate around their mean positions along the direction of propagation of sound waves.

Statement 2: In longitudinal waves, the particles move perpendicular to the direction of the wave propagation.

1. Statement 1 is false and statement 2 is true.

2. Both statements are correct but statement 2 is not the correct explanation of statement 1.

3. Statement 1 is true and statement 2 is false.

4. Both statements are correct and statement 2 is the correct explanation of statement 1.

Q. Pick the one which is not related to a transverse wave:

1. Crest
2. Frequency
3. Time period
4. Rarefaction

Q. Question 3
Suppose you and your friend are on the moon. Will you be able to hear any sound produced by your friend?

Q. Sound with frequency less than 20 Hz is called:

1. Infrasonic sound
2. Supersonic sound
3. Ultrasonic sound
4. Sonic sound

Q. The given plot represents the change in density of the particles as sound travels through a medium. Which of the following statements is/are correct with respect to corresponding pressure-distance graph?

1. Region A will be represented as a crest.
2. Region B will be represented as a trough.
3. Region A will be represented as a trough.
4. ​​​​​​Region B will be represented as a crest.

Q. Which of the following is incorrect regarding transverse waves?

1. They transfer energy from one point to another.
2. Particles oscillate perpendicular to the wave propagation.
3. Particles oscillate parallel to the wave propagation.
4. Particles oscillate about their mean positions.

Q. Particles in a transverse wave vibrate to the direction of wave propagation.

1. parallel
2. opposite
3. perpendicular

Q. 80.Velocity of sound in air at o degree celcius is 332m/s covert it into km/hour

Q. Frequency of a wave depends on its amplitude.

1. True
2. False

Q. In a transverse wave, the particles vibrate parallel to the direction of propagation of the wave.

1. True
2. False

Q.

Sound is a type of

1. electrical wave

2. magnetic wave

3. mechanical wave

4. electromagnetic wave

Q. Why is sound a longitudinal wave?

Q.

Which of the following is a mechanical wave?

1. X-rays

2. Sound

3. Radio waves

4. Light

Q. On the moon, one cannot hear sound, as there is no medium for propagation of sound wave.

1. True
2. False

Q. Represent the following on two different graphs in each case:
Case(i): Two sound waves having the same amplitude but different frequences.
Case(ii): Two sound waves having the same frequency but different amplitudes.
Case(iii): Two sound waves having different amplitudes and also different wavelengths.